1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2011 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
30 #include <linux/dcbnl.h>
31 #include "ixgbe_dcb_82598.h"
32 #include "ixgbe_dcb_82599.h"
34 /* Callbacks for DCB netlink in the kernel */
35 #define BIT_DCB_MODE 0x01
37 #define BIT_PG_RX 0x04
38 #define BIT_PG_TX 0x08
39 #define BIT_APP_UPCHG 0x10
40 #define BIT_LINKSPEED 0x80
42 /* Responses for the DCB_C_SET_ALL command */
43 #define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */
44 #define DCB_NO_HW_CHG 1 /* DCB configuration did not change */
45 #define DCB_HW_CHG 2 /* DCB configuration changed, no reset */
47 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config
*src_dcb_cfg
,
48 struct ixgbe_dcb_config
*dst_dcb_cfg
, int tc_max
)
50 struct tc_configuration
*src_tc_cfg
= NULL
;
51 struct tc_configuration
*dst_tc_cfg
= NULL
;
54 if (!src_dcb_cfg
|| !dst_dcb_cfg
)
57 for (i
= DCB_PG_ATTR_TC_0
; i
< tc_max
+ DCB_PG_ATTR_TC_0
; i
++) {
58 src_tc_cfg
= &src_dcb_cfg
->tc_config
[i
- DCB_PG_ATTR_TC_0
];
59 dst_tc_cfg
= &dst_dcb_cfg
->tc_config
[i
- DCB_PG_ATTR_TC_0
];
61 dst_tc_cfg
->path
[DCB_TX_CONFIG
].prio_type
=
62 src_tc_cfg
->path
[DCB_TX_CONFIG
].prio_type
;
64 dst_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_id
=
65 src_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_id
;
67 dst_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_percent
=
68 src_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_percent
;
70 dst_tc_cfg
->path
[DCB_TX_CONFIG
].up_to_tc_bitmap
=
71 src_tc_cfg
->path
[DCB_TX_CONFIG
].up_to_tc_bitmap
;
73 dst_tc_cfg
->path
[DCB_RX_CONFIG
].prio_type
=
74 src_tc_cfg
->path
[DCB_RX_CONFIG
].prio_type
;
76 dst_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_id
=
77 src_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_id
;
79 dst_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_percent
=
80 src_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_percent
;
82 dst_tc_cfg
->path
[DCB_RX_CONFIG
].up_to_tc_bitmap
=
83 src_tc_cfg
->path
[DCB_RX_CONFIG
].up_to_tc_bitmap
;
86 for (i
= DCB_PG_ATTR_BW_ID_0
; i
< DCB_PG_ATTR_BW_ID_MAX
; i
++) {
87 dst_dcb_cfg
->bw_percentage
[DCB_TX_CONFIG
]
88 [i
-DCB_PG_ATTR_BW_ID_0
] = src_dcb_cfg
->bw_percentage
89 [DCB_TX_CONFIG
][i
-DCB_PG_ATTR_BW_ID_0
];
90 dst_dcb_cfg
->bw_percentage
[DCB_RX_CONFIG
]
91 [i
-DCB_PG_ATTR_BW_ID_0
] = src_dcb_cfg
->bw_percentage
92 [DCB_RX_CONFIG
][i
-DCB_PG_ATTR_BW_ID_0
];
95 for (i
= DCB_PFC_UP_ATTR_0
; i
< DCB_PFC_UP_ATTR_MAX
; i
++) {
96 dst_dcb_cfg
->tc_config
[i
- DCB_PFC_UP_ATTR_0
].dcb_pfc
=
97 src_dcb_cfg
->tc_config
[i
- DCB_PFC_UP_ATTR_0
].dcb_pfc
;
100 dst_dcb_cfg
->pfc_mode_enable
= src_dcb_cfg
->pfc_mode_enable
;
105 static u8
ixgbe_dcbnl_get_state(struct net_device
*netdev
)
107 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
109 return !!(adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
);
112 static u8
ixgbe_dcbnl_set_state(struct net_device
*netdev
, u8 state
)
115 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
119 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
)
122 if (!(adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
)) {
123 e_err(drv
, "Enable failed, needs MSI-X\n");
128 if (netif_running(netdev
))
129 netdev
->netdev_ops
->ndo_stop(netdev
);
130 ixgbe_clear_interrupt_scheme(adapter
);
132 adapter
->flags
&= ~IXGBE_FLAG_RSS_ENABLED
;
133 switch (adapter
->hw
.mac
.type
) {
134 case ixgbe_mac_82598EB
:
135 adapter
->last_lfc_mode
= adapter
->hw
.fc
.current_mode
;
136 adapter
->hw
.fc
.requested_mode
= ixgbe_fc_none
;
138 case ixgbe_mac_82599EB
:
140 adapter
->flags
&= ~IXGBE_FLAG_FDIR_HASH_CAPABLE
;
141 adapter
->flags
&= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE
;
147 adapter
->flags
|= IXGBE_FLAG_DCB_ENABLED
;
148 ixgbe_init_interrupt_scheme(adapter
);
149 if (netif_running(netdev
))
150 netdev
->netdev_ops
->ndo_open(netdev
);
153 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) {
154 if (netif_running(netdev
))
155 netdev
->netdev_ops
->ndo_stop(netdev
);
156 ixgbe_clear_interrupt_scheme(adapter
);
158 adapter
->hw
.fc
.requested_mode
= adapter
->last_lfc_mode
;
159 adapter
->temp_dcb_cfg
.pfc_mode_enable
= false;
160 adapter
->dcb_cfg
.pfc_mode_enable
= false;
161 adapter
->flags
&= ~IXGBE_FLAG_DCB_ENABLED
;
162 adapter
->flags
|= IXGBE_FLAG_RSS_ENABLED
;
163 switch (adapter
->hw
.mac
.type
) {
164 case ixgbe_mac_82599EB
:
166 adapter
->flags
|= IXGBE_FLAG_FDIR_HASH_CAPABLE
;
172 ixgbe_init_interrupt_scheme(adapter
);
173 if (netif_running(netdev
))
174 netdev
->netdev_ops
->ndo_open(netdev
);
181 static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device
*netdev
,
184 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
187 memset(perm_addr
, 0xff, MAX_ADDR_LEN
);
189 for (i
= 0; i
< netdev
->addr_len
; i
++)
190 perm_addr
[i
] = adapter
->hw
.mac
.perm_addr
[i
];
192 switch (adapter
->hw
.mac
.type
) {
193 case ixgbe_mac_82599EB
:
195 for (j
= 0; j
< netdev
->addr_len
; j
++, i
++)
196 perm_addr
[i
] = adapter
->hw
.mac
.san_addr
[j
];
203 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device
*netdev
, int tc
,
204 u8 prio
, u8 bwg_id
, u8 bw_pct
,
207 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
209 if (prio
!= DCB_ATTR_VALUE_UNDEFINED
)
210 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].prio_type
= prio
;
211 if (bwg_id
!= DCB_ATTR_VALUE_UNDEFINED
)
212 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
= bwg_id
;
213 if (bw_pct
!= DCB_ATTR_VALUE_UNDEFINED
)
214 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
=
216 if (up_map
!= DCB_ATTR_VALUE_UNDEFINED
)
217 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
=
220 if ((adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].prio_type
!=
221 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].prio_type
) ||
222 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
!=
223 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
) ||
224 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
!=
225 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
) ||
226 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
!=
227 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
))
228 adapter
->dcb_set_bitmap
|= BIT_PG_TX
;
231 static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device
*netdev
, int bwg_id
,
234 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
236 adapter
->temp_dcb_cfg
.bw_percentage
[0][bwg_id
] = bw_pct
;
238 if (adapter
->temp_dcb_cfg
.bw_percentage
[0][bwg_id
] !=
239 adapter
->dcb_cfg
.bw_percentage
[0][bwg_id
])
240 adapter
->dcb_set_bitmap
|= BIT_PG_TX
;
243 static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device
*netdev
, int tc
,
244 u8 prio
, u8 bwg_id
, u8 bw_pct
,
247 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
249 if (prio
!= DCB_ATTR_VALUE_UNDEFINED
)
250 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].prio_type
= prio
;
251 if (bwg_id
!= DCB_ATTR_VALUE_UNDEFINED
)
252 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
= bwg_id
;
253 if (bw_pct
!= DCB_ATTR_VALUE_UNDEFINED
)
254 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
=
256 if (up_map
!= DCB_ATTR_VALUE_UNDEFINED
)
257 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
=
260 if ((adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].prio_type
!=
261 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].prio_type
) ||
262 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
!=
263 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
) ||
264 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
!=
265 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
) ||
266 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
!=
267 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
))
268 adapter
->dcb_set_bitmap
|= BIT_PG_RX
;
271 static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device
*netdev
, int bwg_id
,
274 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
276 adapter
->temp_dcb_cfg
.bw_percentage
[1][bwg_id
] = bw_pct
;
278 if (adapter
->temp_dcb_cfg
.bw_percentage
[1][bwg_id
] !=
279 adapter
->dcb_cfg
.bw_percentage
[1][bwg_id
])
280 adapter
->dcb_set_bitmap
|= BIT_PG_RX
;
283 static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device
*netdev
, int tc
,
284 u8
*prio
, u8
*bwg_id
, u8
*bw_pct
,
287 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
289 *prio
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].prio_type
;
290 *bwg_id
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
;
291 *bw_pct
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
;
292 *up_map
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
;
295 static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device
*netdev
, int bwg_id
,
298 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
300 *bw_pct
= adapter
->dcb_cfg
.bw_percentage
[0][bwg_id
];
303 static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device
*netdev
, int tc
,
304 u8
*prio
, u8
*bwg_id
, u8
*bw_pct
,
307 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
309 *prio
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].prio_type
;
310 *bwg_id
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
;
311 *bw_pct
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
;
312 *up_map
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
;
315 static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device
*netdev
, int bwg_id
,
318 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
320 *bw_pct
= adapter
->dcb_cfg
.bw_percentage
[1][bwg_id
];
323 static void ixgbe_dcbnl_set_pfc_cfg(struct net_device
*netdev
, int priority
,
326 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
328 adapter
->temp_dcb_cfg
.tc_config
[priority
].dcb_pfc
= setting
;
329 if (adapter
->temp_dcb_cfg
.tc_config
[priority
].dcb_pfc
!=
330 adapter
->dcb_cfg
.tc_config
[priority
].dcb_pfc
) {
331 adapter
->dcb_set_bitmap
|= BIT_PFC
;
332 adapter
->temp_dcb_cfg
.pfc_mode_enable
= true;
336 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device
*netdev
, int priority
,
339 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
341 *setting
= adapter
->dcb_cfg
.tc_config
[priority
].dcb_pfc
;
344 static u8
ixgbe_dcbnl_set_all(struct net_device
*netdev
)
346 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
349 if (!adapter
->dcb_set_bitmap
||
350 !(adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_CEE
))
351 return DCB_NO_HW_CHG
;
353 ret
= ixgbe_copy_dcb_cfg(&adapter
->temp_dcb_cfg
, &adapter
->dcb_cfg
,
354 adapter
->ring_feature
[RING_F_DCB
].indices
);
357 return DCB_NO_HW_CHG
;
360 * Only take down the adapter if an app change occured. FCoE
361 * may shuffle tx rings in this case and this can not be done
362 * without a reset currently.
364 if (adapter
->dcb_set_bitmap
& BIT_APP_UPCHG
) {
365 while (test_and_set_bit(__IXGBE_RESETTING
, &adapter
->state
))
368 if (netif_running(netdev
))
369 netdev
->netdev_ops
->ndo_stop(netdev
);
370 ixgbe_clear_interrupt_scheme(adapter
);
373 if (adapter
->dcb_cfg
.pfc_mode_enable
) {
374 switch (adapter
->hw
.mac
.type
) {
375 case ixgbe_mac_82599EB
:
377 if (adapter
->hw
.fc
.current_mode
!= ixgbe_fc_pfc
)
378 adapter
->last_lfc_mode
=
379 adapter
->hw
.fc
.current_mode
;
384 adapter
->hw
.fc
.requested_mode
= ixgbe_fc_pfc
;
386 switch (adapter
->hw
.mac
.type
) {
387 case ixgbe_mac_82598EB
:
388 adapter
->hw
.fc
.requested_mode
= ixgbe_fc_none
;
390 case ixgbe_mac_82599EB
:
392 adapter
->hw
.fc
.requested_mode
= adapter
->last_lfc_mode
;
399 if (adapter
->dcb_set_bitmap
& BIT_APP_UPCHG
) {
400 ixgbe_init_interrupt_scheme(adapter
);
401 if (netif_running(netdev
))
402 netdev
->netdev_ops
->ndo_open(netdev
);
403 ret
= DCB_HW_CHG_RST
;
406 if (adapter
->dcb_set_bitmap
& BIT_PFC
) {
408 ixgbe_dcb_unpack_pfc(&adapter
->dcb_cfg
, &pfc_en
);
409 ixgbe_dcb_hw_pfc_config(&adapter
->hw
, pfc_en
);
413 if (adapter
->dcb_set_bitmap
& (BIT_PG_TX
|BIT_PG_RX
)) {
414 u16 refill
[MAX_TRAFFIC_CLASS
], max
[MAX_TRAFFIC_CLASS
];
415 u8 bwg_id
[MAX_TRAFFIC_CLASS
], prio_type
[MAX_TRAFFIC_CLASS
];
416 int max_frame
= adapter
->netdev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
419 if (adapter
->netdev
->features
& NETIF_F_FCOE_MTU
)
420 max_frame
= max(max_frame
, IXGBE_FCOE_JUMBO_FRAME_SIZE
);
423 ixgbe_dcb_calculate_tc_credits(&adapter
->hw
, &adapter
->dcb_cfg
,
424 max_frame
, DCB_TX_CONFIG
);
425 ixgbe_dcb_calculate_tc_credits(&adapter
->hw
, &adapter
->dcb_cfg
,
426 max_frame
, DCB_RX_CONFIG
);
428 ixgbe_dcb_unpack_refill(&adapter
->dcb_cfg
,
429 DCB_TX_CONFIG
, refill
);
430 ixgbe_dcb_unpack_max(&adapter
->dcb_cfg
, max
);
431 ixgbe_dcb_unpack_bwgid(&adapter
->dcb_cfg
,
432 DCB_TX_CONFIG
, bwg_id
);
433 ixgbe_dcb_unpack_prio(&adapter
->dcb_cfg
,
434 DCB_TX_CONFIG
, prio_type
);
436 ixgbe_dcb_hw_ets_config(&adapter
->hw
, refill
, max
,
440 if (adapter
->dcb_cfg
.pfc_mode_enable
)
441 adapter
->hw
.fc
.current_mode
= ixgbe_fc_pfc
;
443 if (adapter
->dcb_set_bitmap
& BIT_APP_UPCHG
)
444 clear_bit(__IXGBE_RESETTING
, &adapter
->state
);
445 adapter
->dcb_set_bitmap
= 0x00;
449 static u8
ixgbe_dcbnl_getcap(struct net_device
*netdev
, int capid
, u8
*cap
)
451 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
454 case DCB_CAP_ATTR_PG
:
457 case DCB_CAP_ATTR_PFC
:
460 case DCB_CAP_ATTR_UP2TC
:
463 case DCB_CAP_ATTR_PG_TCS
:
466 case DCB_CAP_ATTR_PFC_TCS
:
469 case DCB_CAP_ATTR_GSP
:
472 case DCB_CAP_ATTR_BCN
:
475 case DCB_CAP_ATTR_DCBX
:
476 *cap
= adapter
->dcbx_cap
;
486 static u8
ixgbe_dcbnl_getnumtcs(struct net_device
*netdev
, int tcid
, u8
*num
)
488 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
491 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) {
493 case DCB_NUMTCS_ATTR_PG
:
494 *num
= MAX_TRAFFIC_CLASS
;
496 case DCB_NUMTCS_ATTR_PFC
:
497 *num
= MAX_TRAFFIC_CLASS
;
510 static u8
ixgbe_dcbnl_setnumtcs(struct net_device
*netdev
, int tcid
, u8 num
)
515 static u8
ixgbe_dcbnl_getpfcstate(struct net_device
*netdev
)
517 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
519 return adapter
->dcb_cfg
.pfc_mode_enable
;
522 static void ixgbe_dcbnl_setpfcstate(struct net_device
*netdev
, u8 state
)
524 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
526 adapter
->temp_dcb_cfg
.pfc_mode_enable
= state
;
527 if (adapter
->temp_dcb_cfg
.pfc_mode_enable
!=
528 adapter
->dcb_cfg
.pfc_mode_enable
)
529 adapter
->dcb_set_bitmap
|= BIT_PFC
;
533 * ixgbe_dcbnl_getapp - retrieve the DCBX application user priority
534 * @netdev : the corresponding netdev
535 * @idtype : identifies the id as ether type or TCP/UDP port number
536 * @id: id is either ether type or TCP/UDP port number
538 * Returns : on success, returns a non-zero 802.1p user priority bitmap
539 * otherwise returns 0 as the invalid user priority bitmap to indicate an
542 static u8
ixgbe_dcbnl_getapp(struct net_device
*netdev
, u8 idtype
, u16 id
)
544 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
547 if (!(adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_CEE
))
551 case DCB_APP_IDTYPE_ETHTYPE
:
553 if (id
== ETH_P_FCOE
)
554 rval
= ixgbe_fcoe_getapp(adapter
);
557 case DCB_APP_IDTYPE_PORTNUM
:
566 * ixgbe_dcbnl_setapp - set the DCBX application user priority
567 * @netdev : the corresponding netdev
568 * @idtype : identifies the id as ether type or TCP/UDP port number
569 * @id: id is either ether type or TCP/UDP port number
570 * @up: the 802.1p user priority bitmap
572 * Returns : 0 on success or 1 on error
574 static u8
ixgbe_dcbnl_setapp(struct net_device
*netdev
,
575 u8 idtype
, u16 id
, u8 up
)
577 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
580 if (!(adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_CEE
))
584 case DCB_APP_IDTYPE_ETHTYPE
:
586 if (id
== ETH_P_FCOE
) {
589 /* Get current programmed tc */
590 old_tc
= adapter
->fcoe
.tc
;
591 rval
= ixgbe_fcoe_setapp(adapter
, up
);
594 !(adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) ||
595 !(adapter
->flags
& IXGBE_FLAG_FCOE_ENABLED
))
598 /* The FCoE application priority may be changed multiple
599 * times in quick sucession with switches that build up
600 * TLVs. To avoid creating uneeded device resets this
601 * checks the actual HW configuration and clears
602 * BIT_APP_UPCHG if a HW configuration change is not
605 if (old_tc
== adapter
->fcoe
.tc
)
606 adapter
->dcb_set_bitmap
&= ~BIT_APP_UPCHG
;
608 adapter
->dcb_set_bitmap
|= BIT_APP_UPCHG
;
612 case DCB_APP_IDTYPE_PORTNUM
:
620 static int ixgbe_dcbnl_ieee_getets(struct net_device
*dev
,
621 struct ieee_ets
*ets
)
623 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
624 struct ieee_ets
*my_ets
= adapter
->ixgbe_ieee_ets
;
626 /* No IEEE PFC settings available */
630 ets
->ets_cap
= MAX_TRAFFIC_CLASS
;
631 ets
->cbs
= my_ets
->cbs
;
632 memcpy(ets
->tc_tx_bw
, my_ets
->tc_tx_bw
, sizeof(ets
->tc_tx_bw
));
633 memcpy(ets
->tc_rx_bw
, my_ets
->tc_rx_bw
, sizeof(ets
->tc_rx_bw
));
634 memcpy(ets
->tc_tsa
, my_ets
->tc_tsa
, sizeof(ets
->tc_tsa
));
635 memcpy(ets
->prio_tc
, my_ets
->prio_tc
, sizeof(ets
->prio_tc
));
639 static int ixgbe_dcbnl_ieee_setets(struct net_device
*dev
,
640 struct ieee_ets
*ets
)
642 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
643 __u16 refill
[IEEE_8021QAZ_MAX_TCS
], max
[IEEE_8021QAZ_MAX_TCS
];
644 int max_frame
= dev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
646 /* naively give each TC a bwg to map onto CEE hardware */
647 __u8 bwg_id
[IEEE_8021QAZ_MAX_TCS
] = {0, 1, 2, 3, 4, 5, 6, 7};
649 if (!(adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_IEEE
))
652 if (!adapter
->ixgbe_ieee_ets
) {
653 adapter
->ixgbe_ieee_ets
= kmalloc(sizeof(struct ieee_ets
),
655 if (!adapter
->ixgbe_ieee_ets
)
659 memcpy(adapter
->ixgbe_ieee_ets
, ets
, sizeof(*adapter
->ixgbe_ieee_ets
));
661 ixgbe_ieee_credits(ets
->tc_tx_bw
, refill
, max
, max_frame
);
662 err
= ixgbe_dcb_hw_ets_config(&adapter
->hw
, refill
, max
,
663 bwg_id
, ets
->tc_tsa
);
667 static int ixgbe_dcbnl_ieee_getpfc(struct net_device
*dev
,
668 struct ieee_pfc
*pfc
)
670 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
671 struct ieee_pfc
*my_pfc
= adapter
->ixgbe_ieee_pfc
;
674 /* No IEEE PFC settings available */
678 pfc
->pfc_cap
= MAX_TRAFFIC_CLASS
;
679 pfc
->pfc_en
= my_pfc
->pfc_en
;
680 pfc
->mbc
= my_pfc
->mbc
;
681 pfc
->delay
= my_pfc
->delay
;
683 for (i
= 0; i
< MAX_TRAFFIC_CLASS
; i
++) {
684 pfc
->requests
[i
] = adapter
->stats
.pxoffrxc
[i
];
685 pfc
->indications
[i
] = adapter
->stats
.pxofftxc
[i
];
691 static int ixgbe_dcbnl_ieee_setpfc(struct net_device
*dev
,
692 struct ieee_pfc
*pfc
)
694 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
697 if (!(adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_IEEE
))
700 if (!adapter
->ixgbe_ieee_pfc
) {
701 adapter
->ixgbe_ieee_pfc
= kmalloc(sizeof(struct ieee_pfc
),
703 if (!adapter
->ixgbe_ieee_pfc
)
707 memcpy(adapter
->ixgbe_ieee_pfc
, pfc
, sizeof(*adapter
->ixgbe_ieee_pfc
));
708 err
= ixgbe_dcb_hw_pfc_config(&adapter
->hw
, pfc
->pfc_en
);
712 static u8
ixgbe_dcbnl_getdcbx(struct net_device
*dev
)
714 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
715 return adapter
->dcbx_cap
;
718 static u8
ixgbe_dcbnl_setdcbx(struct net_device
*dev
, u8 mode
)
720 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
721 struct ieee_ets ets
= {0};
722 struct ieee_pfc pfc
= {0};
724 /* no support for LLD_MANAGED modes or CEE+IEEE */
725 if ((mode
& DCB_CAP_DCBX_LLD_MANAGED
) ||
726 ((mode
& DCB_CAP_DCBX_VER_IEEE
) && (mode
& DCB_CAP_DCBX_VER_CEE
)) ||
727 !(mode
& DCB_CAP_DCBX_HOST
))
730 if (mode
== adapter
->dcbx_cap
)
733 adapter
->dcbx_cap
= mode
;
735 /* ETS and PFC defaults */
739 if (mode
& DCB_CAP_DCBX_VER_IEEE
) {
740 ixgbe_dcbnl_ieee_setets(dev
, &ets
);
741 ixgbe_dcbnl_ieee_setpfc(dev
, &pfc
);
742 } else if (mode
& DCB_CAP_DCBX_VER_CEE
) {
743 adapter
->dcb_set_bitmap
|= (BIT_PFC
& BIT_PG_TX
& BIT_PG_RX
);
744 ixgbe_dcbnl_set_all(dev
);
746 /* Drop into single TC mode strict priority as this
747 * indicates CEE and IEEE versions are disabled
749 ixgbe_dcbnl_ieee_setets(dev
, &ets
);
750 ixgbe_dcbnl_ieee_setpfc(dev
, &pfc
);
751 ixgbe_dcbnl_set_state(dev
, 0);
757 const struct dcbnl_rtnl_ops dcbnl_ops
= {
758 .ieee_getets
= ixgbe_dcbnl_ieee_getets
,
759 .ieee_setets
= ixgbe_dcbnl_ieee_setets
,
760 .ieee_getpfc
= ixgbe_dcbnl_ieee_getpfc
,
761 .ieee_setpfc
= ixgbe_dcbnl_ieee_setpfc
,
762 .getstate
= ixgbe_dcbnl_get_state
,
763 .setstate
= ixgbe_dcbnl_set_state
,
764 .getpermhwaddr
= ixgbe_dcbnl_get_perm_hw_addr
,
765 .setpgtccfgtx
= ixgbe_dcbnl_set_pg_tc_cfg_tx
,
766 .setpgbwgcfgtx
= ixgbe_dcbnl_set_pg_bwg_cfg_tx
,
767 .setpgtccfgrx
= ixgbe_dcbnl_set_pg_tc_cfg_rx
,
768 .setpgbwgcfgrx
= ixgbe_dcbnl_set_pg_bwg_cfg_rx
,
769 .getpgtccfgtx
= ixgbe_dcbnl_get_pg_tc_cfg_tx
,
770 .getpgbwgcfgtx
= ixgbe_dcbnl_get_pg_bwg_cfg_tx
,
771 .getpgtccfgrx
= ixgbe_dcbnl_get_pg_tc_cfg_rx
,
772 .getpgbwgcfgrx
= ixgbe_dcbnl_get_pg_bwg_cfg_rx
,
773 .setpfccfg
= ixgbe_dcbnl_set_pfc_cfg
,
774 .getpfccfg
= ixgbe_dcbnl_get_pfc_cfg
,
775 .setall
= ixgbe_dcbnl_set_all
,
776 .getcap
= ixgbe_dcbnl_getcap
,
777 .getnumtcs
= ixgbe_dcbnl_getnumtcs
,
778 .setnumtcs
= ixgbe_dcbnl_setnumtcs
,
779 .getpfcstate
= ixgbe_dcbnl_getpfcstate
,
780 .setpfcstate
= ixgbe_dcbnl_setpfcstate
,
781 .getapp
= ixgbe_dcbnl_getapp
,
782 .setapp
= ixgbe_dcbnl_setapp
,
783 .getdcbx
= ixgbe_dcbnl_getdcbx
,
784 .setdcbx
= ixgbe_dcbnl_setdcbx
,